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package org.netbeans.modules.javafx.profiler.actions;

import javax.swing.text.JTextComponent;
import org.netbeans.api.editor.EditorRegistry;
import org.netbeans.modules.javafx.profiler.utilities.JavaFXProjectUtilities;
import org.netbeans.modules.profiler.actions.BaseSelectRootMethodsAction;
import org.netbeans.modules.profiler.projectsupport.utilities.SourceUtils;
import org.openide.filesystems.FileObject;

/**
 * Action enabled on Java sources allowing to select root method(s) for Profiling of Part of Application.
 * @author Jaroslav Bachorik <jaroslav.bachorik@sun.com>
 */
final public class SelectJavaFXRootMethodsAction extends BaseSelectRootMethodsAction {

    @Override
    protected String getFileClassName(FileObject file) {
        String className = null;
        // Read current offset in editor
        JTextComponent lastFocusedComponent = EditorRegistry.lastFocusedComponent();

        // Read current offset in editor
        int currentOffsetInEditor = lastFocusedComponent.getCaretPosition();

        if (currentOffsetInEditor == -1) {
            return null;
        }

        // Try to get class at cursor or type of field at cursor
        JavaFXProjectUtilities.ResolvedClass resolvedClass = JavaFXProjectUtilities.resolveClassAtPosition(file,
                currentOffsetInEditor, true);

        if ((resolvedClass != null) && (resolvedClass.getJClass() != null)) {
            className = resolvedClass.getVMClassName();
        }

        if (className == null) {
            // Try to get method enclosing cursor position
            className = SourceUtils.getEnclosingClassName(file, currentOffsetInEditor);
        }

        if (className == null) {
            // Get toplevel class
            className = SourceUtils.getToplevelClassName(file);
        }
        return className;
    }
}
